For a new iPhone app game, i am looking for a service to manage users.
Since in the beginning of the app i want to show new coming users existing activity in the app, its a simple game the user management should post photos, comment on other users photo mainly.

I am interested to build a mobile web site. and create a "shortcut" trough an app icon that will simply launch the site it self.
IT will contain 3 tabs,
1. a few audio tracks to play online
2. twitter posts
3. coming event